iRobot Roomba 400 Troubleshooting

If you are having problems with your iRobot Roomba 400 Robot Vacuum, you are not alone. Many iRobot Roomba 400 owners experience issues with their robot vacuum from time to time, and it can be frustrating to deal with these problems.

I have problems with my iRobot Roomba 400

Reported iRobot Roomba 400 Issues

The iRobot Roomba 400 CLEAN/Power light will not illuminate

Cause Solution
  • The battery is not seated correctly
  • Remove Roomba’s battery by pushing the side clips and re-insert the battery making sure you hear an audible click.

The iRobot Roomba 400 is not picking up debris

Cause Solution
  • Bin is full
  • Empty the bin and clean Roomba’s brushes

The iRobot Roomba 400 does not charge

Cause Solution
  • The charger is not plugged in
  • Ensure that the charger is correctly connected to the wall
    and to Roomba. Roomba’s charger will illuminate a solid
    green light when plugged into a power source

The iRobot Roomba 400 backs up frequently and behaves erratically

Cause Solution
  • Dirty cliff sensors
  • Use compressed air to clean out Roomba’s cliff sensors.

iRobot Roomba 400 Robot Vacuum Problems

Below are common issues and solutions for the iRobot Roomba 400:

The iRobot Roomba 400 will tell you when something is wrong with a two-tone “uh-oh”.

Number of beeps after “uh-oh”
Cause Solution
No beep
  • A wheel is stuck or is not touching the ground
  • Pick up Roomba, place it down securely on the floor and touch the clean button to restart the cycle
1 beep
  • The main brushes cannot turn
  • Turn over Roomba and remove the brush guard by pushing the two yellow tabs. Remove the brushes, clear any obstructions, and replace them again
2 beeps
  • The side brush cannot turn
  • Turn over Roomba. Look to see if something is wrapped around the side brush. Remove the side brush with a screwdriver and check for string or hair that may be wrapped around it
3 beeps
  • The vacuum cannot run
  • Remove and empty Roomba’s bin.
4 beeps
  • A wheel cannot run
  • Your Roomba may be stuck or something may be wrapped
    around a wheel. Look for something wrapped around the
    wheels. Push them in and out and make sure they turn
5 beeps
  • The cliff sensors have failed or are blocked
  • Turn over Roomba and clear any debris that might be
    caught underneath the front bumper in the cliff sensors. You can also use compressed air to clean them out.
6 beeps
  • Wheel obstruction or a robot attempting to drive over an obstacle
  • Turn over Roomba and remove any obstructions that
    Prevent the wheels from seating all the way up into
    Roomba’s body. Also, remove any obstacles that Roomba
    could drive over.
9 beeps
  • Sensor error
  • Please contact iRobot Customer Support.
10 beeps
  • Roomba is stuck
  • Pick up Roomba and start it again somewhere else. Use a
    virtual wall or other barrier to keep Roomba away from the
    place it got stuck

iRobot Roomba 400 Replacement Parts

How to Diagnose and Repair a iRobot Roomba 400

This guide will help you identify and resolve issues with your iRobot Roomba 400 Robot Vacuum.

iRobot Roomba 400 Issues? Need Help?

Users are encouraged to share their tips or frustrations with their iRobot Roomba 400 with the community by leaving a comment. Sharing insights and experiences can help other users get the most out of their robot vacuum and avoid common issues.

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